Pipe-fitting.



J. W. BUTTS.

PIPE FITTING.

APPLICATION FILED MAY 7, 1914. 1,126,386, Patented M1126, 1915.

' Z? I I J4 I H J4 .a My 7 Attorneys JOHN WILBURN BUTTS, OF ATLANTA,GEORGIA.

Specification of Letters Eatent.

r j a PIPE-FITTING.

Patented. Jan. 26, 1915.

Application filed May 7, 1914. Serial No. 837,033.

To all whom it may concern:

Be it known that I, JOHN W. Burrs, a citizen of the United States,residing at Atlanta, in the county of Fulton and State of Georgia, haveinvented a new and useful Pipe-Fitting, of which the following is aspecification- The device forming the subject matter of this applicationis a pipe coupling, and one object of the present invention is toprovide novel means whereby a smooth, unthreaded pipe, may be made tocooperate with another pipe, to form a water tight joint.

Another object of the invention is to provide a pipe coupling of simpleform which will permit a longitudinal adjustmentthere-- in of a smoothpipe. 7

It is within the scope of the invention to improve generally and toenhance the utility of devices of that type to which the present.

invention appertains.

With the above and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the drawing :Figure 1 shows the in vention in sectional elevation;embodied in the form of a T; Fig. 2 is a longitudinal section showingthe meeting ends of the pipes; Fig. 3is a perspective of the thimble;Fig. 4. is a perspective of the nut; Fig. 5 is a longitudinal sectionshowing a modification.

In the drawing there is shown a pipe denoted generally by the numeral 1and hereinafter referred to as the outer pipe, the pipe 1 being, ifdesired, in the form of a T, each end of the T being provided with acoupling mechanism but one of which need be described.

The bore 2 of the pipe v1 is enlarged to form a shoulder 3 supporting ayieldable gasket 4:. At its outer end, the pipe 1 is provided with aprojecting flange 5 which is peripherally threaded as shown at 6. Acarrying member is provided, the same in the present instance being inthe form of a nut 7 provided at one end with an inwardly projectingflange 8 having an opening 9.

The nut 7 is threaded onto the threaded flange 5 of the pipe 1. Lyingwithin the nut 7 is a thimble 10 having exterior wrench faces 11 andprovided with a flange 12 which engages the inner face of the flange 8on the nut. The thimble 10 is equipped with a reinforcing lug 14. intowhich is threaded a set screw 15 or other clamping device, adapted toenter the smooth bore 16 of the thimble and to hold in place an innerpipe 17.

In practical operation, the inner pipe 17 1 is slid longitudinally inthethimble 10 until the inner endof the pipe 17 is as close as possibleto the gasket 4. Then, the set screw 15 is tightened up to hold the pipe17 in its adjusted position. Then, the nut 7 is rotated on the pipe 1,the flange 8 coacting with the flange 12 to advance the pipe 17 untilthe inner end thereof is bound firmly against the washer or gasket 4..

It is to be observed that the flange 8 of the nut 7 is journaled forrotation between the lug 1a and the flange 12. When the nut 7 isreversely rotated, the flange 8 coacts with the lug 14 to back up thethimble 10 positively, and thus efl'ect a separation of the pipes 1 and17, should the same be rusted together. The thimble 10 may be separatedreadily from the nut 7 by first removing the set screw 15 and thenpermitting the lug 14 to pass through the opening 9. However, when theset screw 15 is in place in the lug 1 1, the thimble cannot becomedisengaged accidentally from the nut.

In Fig. 5 of the drawings, a modified form of the invention is shown. Insaid figure, the outer pipe is shown at 18 and the bore 19 thereof isenlarged to form an internal shoulder 20 against which rests a gasket orwasher 22. vided with a terminal flange 21. The carryingmember is in theform of a plate 23 through which the thimble 24 passes, the latterhaving a flange 25 which engages the inner face of the carrying memberor plate 23. Set screws 26 pass through the thimble 24: and engagetheinner pipe 27. The carrying member or plate 23 is operatively connectedwith the flange 21 of the main pipe 18 through the medium of bolts 28 orthe like. The structure above described does not difler materially inoperation from the structure originally set forth, and a more The pipe18 is prodetailed description than that above given is consideredunnecessary.

Having thus described the invention, what is claimed is 1. In a deviceof the class described, an outer pipe having its bore enlarged to form ashoulder; acarrying member; a thimble mounted in the carrying member andhaving a flange engaging the'inner faeeof the carrying member; an innerpipe longitudinally adjustable in the thimble With-respect to theshoulder; means upon the thimble and engaging the inner pipe to hold thelatter in adjusted positions With respect to the shoulder; and anoperative connection between the main pipe and the carrying member formovingthe carrying member, the thimble and the inner pipe, to cause theend of the inner pipe to cooperate with the shoulder.

2. In a device of the class described, an outer pipe having its boreenlarged to form a shoulder; a nut threaded on the pipe and having aflange; a thimble upon which the nut is rotatable, the thimble beingprovided with a flange which engages the inner face of the flange of thenut, the thimble having i a smooth bore; an inner pipe adjustablelongitudinally in the smooth bore of the thimble, with respect to theshoulder; and a clamping device in the. thimble and engaging the innerpipe to hold the latter in ad- I justed positions, the nut beingrotatable journaled between the flange of the thimble and the lug, theflange of the nut having an opening through which the lug is adapted topass, the clamping device coiiperating with the nut to prevent thepassage of the lug through the opening. 7

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two itnesses.

J JOHN WILBURN BUTTS.

Witnesses o O. H. ALLEN, J. T. FREEMAN.

Copies of this patent may be obtained for five cents 'eachy'cyaddressing the Commissioner of latents,

Washington, D. 0.

